• Title/Summary/Keyword: analysis infrastructure

Search Result 3,348, Processing Time 0.033 seconds

A Scientometric and Meta-analysis of Rail Infrastructure in Nigeria

  • Awodele, Imoleayo Abraham;Mewomo, Modupe Cecilia
    • International conference on construction engineering and project management
    • /
    • 2022.06a
    • /
    • pp.960-966
    • /
    • 2022
  • Mobility is an essential human need. Human survival and societal interaction depend on the ability to move people and goods. Efficient mobility systems are essential facilitators of economic development. Cities could not exist and global trade could not occur without systems to transport people and goods cheaply and efficiently. Rail has been considered as one of the important components of the transportation infrastructure required to service and improve the performance and productivity of an economy. In Nigeria, the rail infrastructure built by the colonial master several decades ago has been left in a state of total deterioration. This long neglect was occasioned by the failure of the government to pay adequate attention to infrastructure development. There is a vital and urgent need for rail infrastructure development in Nigeria. This study presents a systematic review of the evolution of rail, the current nature of railway infrastructure delivery in Nigeria, and offers possible suggestions on how to achieve an effective and sustainable rail infrastructure delivery in Nigeria. A thorough literature search of academic databases was conducted on current research trends on the subject of railway infrastructure by systematically reviewing selected published articles from reputable research domains. The analysis of the selected articles revealed the following among others (1) the existing railway infrastructure is in a state of mess and not sustainable, and (2), Government's investment/commitment in rail infrastructure seems inadequate compared to what is obtainable in other developed countries. Rail infrastructure development cannot be left to the Federal government of Nigeria to solve on its own; collaboration and participation are required. Government as a matter of priority should devote considerable attention to the development of rail infrastructure to harness the economic potential and transformation that sustainable rail infrastructural projects will provide.

  • PDF

Integrated Equity Analysis Based on Travel Behavior and Transportation Infrastructure: In Gyeonggi-Do Case (교통인프라와 통행행태를 기반으로 한 통합적 형평성 분석: 경기도를 중심으로)

  • Bin, Miyoung;Lee, Won Do;Moon, Juback;Joh, Chang-Hyeon
    • Journal of Korean Society of Transportation
    • /
    • v.31 no.4
    • /
    • pp.47-57
    • /
    • 2013
  • This study aims at analyzing transportation equity between geographical areas of Gyonggi Province, by taking both the transportation infrastructure and travel behavior into account. Indicators of transportation infrastructure include the indices of road infrastructure, transit infrastructure and regional characteristics. Travel behavior concerns information from bus card data on a survey day. The hot-spot analysis conducted included spatial cluster analysis and global/local regression analyses. The analysis results identified geographical areas of four different classes of transportation equity, from the area with high level infrastructure surrounded by the areas with high level infrastructure (HH) to the area with low level surrounded by the areas with low level (LL). The area of HH type showed big numbers of passengers, trips and transfers, whereas the area of LL type shows big figures of internal trip frequency, travel time, travel distance, travel speed and transit fare. Global regression analysis showed that number of passengers, number of transfers, number of internal trips and mean travel speed are important to the level of transportation infrastructure. GWR with these four significant variables significantly improved the AICs and ANOVA results, which implies that the infrastructure is likely explained by travel characteristics differently between geographical areas in Gyonggi Province.

Analysis of Saturation Depth by Rainfall Intensity and Soil Conditions on Slope (비탈면 침투해석시 지반 및 강우조건에 의한 포화깊이 분석)

  • Lee, Seung-Woo;Jang, Bhum-Soo;Kim, Sung-Ho;Heo, In-Young;Hong, Suk-Pyo
    • Journal of the Korean Geosynthetics Society
    • /
    • v.11 no.4
    • /
    • pp.63-69
    • /
    • 2012
  • Climate change, according to the country to increase locality of slope collapse of heavy disaster, such as increasing the likelihood and prior in order to prevent these disasters, "Slope construction design standards (Ministry of Land, 2011)," is prescribed in the relevant guidelines. In recent years, guidelines Slope Stability Analysis of the existing methods when the rainy season infiltration of rainfall, taking into account have been revised to perform more realistic. In this study, according these trends to the analysis of saturation depth by rainfall intensity and soil conditions. Results as a whole, the larger the saturated hydraulic conductivity and depth of rainfall intensity also showed a tendency to rise in proportion but MH, CL did not occur in the saturation region. Analysis of antecedent rainfall case also reflects an overall increase of depth in the saturated, rainfall in many cases is less than the growth rate was higher in the saturation region.

The Effect of Road Transportation Infrastructure on Freight Transport Mobility and Regional Economy in Indonesia

  • TARIGAN, Harimin;MATONDANG, Abdul Rahim;LUBIS, Suwardi;SIROJUZILAM, Sirojuzilam
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.8 no.3
    • /
    • pp.645-654
    • /
    • 2021
  • This research aims to examine the influence of road transportation infrastructure on the mobility of goods transport and the regional economy in Langkat Regency in Indonesia. This type of research is an associative and explanatory research whose data is obtained through a questionnaire survey. This study took a sample of 305 respondents using probability sampling in Langkat Regency, North Sumatera, Indonesia. Data analysis techniques use path analysis. The research results showed that the road transportation infrastructure variables had a significant and positive effect on the mobility of goods transport. Road transportation infrastructure and freight mobility simultaneously have a significant and positive effect on the economy of Langkat Regency. Road transportation infrastructure with the dimensions of road accessibility and maintenance partially directly has a significant and positive effect on the economy of the Langkat Regency. Road transportation infrastructure with the dimensions of road design and road construction quality partially does not have a direct effect on the regional economy, but has a positive and significant effect through the mobility of freight transport. The mobility of goods transport becomes an intervening variable that acts to mediate or determine the relationship between road transportation infrastructure variables to the regional economy.

Behavior of Seepage and Seismic for the Deterioration Reservoir Using Numerical Analysis (수치해석에 의한 노후저수지의 침투 및 동적거동)

  • Park, Sung-Yong;Chang, Suk-Hyun;Lim, Hyun-Taek;Kim, Jung-Meyon;Kim, Yong-Seong
    • Journal of The Korean Society of Agricultural Engineers
    • /
    • v.58 no.3
    • /
    • pp.81-90
    • /
    • 2016
  • It is significant to redevelop the deterioration reservoir through raising for countermeasure to climate change and Earthquake improvement of reservoir. This study aims to investigate the behavior of deterioration reservoir with poor-fabricated core subjected to raising water level and earthquake using numerical analysis. From the analysis results, water level raising and earthquakes induce crack and subsidences at the crown and the front side of deterioration reservoir. For the reinforcement of the deterioration reservoir is required appropriate measures method and raised method suitable, drainage and slope protection method judged to be necessary.

A Strategy Development of Hydrogen Energy Industrial Infrastructure by Using SWOT/AHP Method (SWOT-AHP 분석을 이용한 수소에너지 산업 인프라 전략 개발)

  • Han, Jang-Hyup;Kim, Su-Ji;Kim, Chae-Bogk
    • Journal of Korea Technology Innovation Society
    • /
    • v.19 no.4
    • /
    • pp.822-847
    • /
    • 2016
  • The sustainable energy has globally become more important to maintain the future industry. Of various new renewable energy types, hydrogen energy had drawn a lot of attention as clean energy. Therefore, this study applied SWOT-AHP analysis to establish a strategy for the infrastructure of hydrogen energy industry. It drew the factors required to establish the infrastructure of hydrogen energy industry based on the literature review and experts' opinions were surveyed to redesign SWOT Matrix. The AHP analysis is performed to obtain the relative importance of developed factors by pairwise comparisons. Based on research results by applying SWOT analysis and AHP, this paper proposes the development of strategic plan for infrastructure of hydrogen energy industry.

Analysis of Road Snow-removal Infrastructure using Road Snow-removal Historical Data (도로제설 이력자료 기반 제설 인프라 분석)

  • Kim, Jin Guk;Kim, Seoung Bum;Yang, Choong Heon
    • International Journal of Highway Engineering
    • /
    • v.19 no.3
    • /
    • pp.83-90
    • /
    • 2017
  • PURPOSES : In this study, systematic road snow-removal capabilities were estimated based on previous historical data for road-snowremoval works. The final results can be used to aid decision-making strategies for cost-effective snow-removal works by regional offices. METHODS : First, road snow-removal historical data from the road snow-removal management system (RSMS), operated by the Ministry of Land, Infrastructure and Transport, were employed to determine specific characteristics of the snow-removal capabilities by region. The actual owned amount and actual used amount of infrastructure were analyzed for the past three years. Second, the regional offices were classified using K-means clustering into groups "close" to one another. Actual used snow-removal infrastructure was determined from the number of snow-removal working days. Finally, the correlation between the de-icing materials used and infrastructure was analyzed. Significant differences were found among the amounts of used infrastructure depending on snowfall intensity for each regional office during the past three years. RESULTS:The results showed that the amount of snow-removal infrastructure used for low heavy-snowfall intensity did not appear to depend on the amount of heavy snowfall, and therefore, high variation is observed in each area. CONCLUSIONS:This implies that the final analysis results will be useful when making decisions on snow-removal works.

Communication Disaster Type and Risk Analysis (통신재난의 유형 및 위험분석)

  • Choi, Jae Myeong
    • Journal of Platform Technology
    • /
    • v.9 no.3
    • /
    • pp.18-23
    • /
    • 2021
  • As it develops into a hyper-connected society, the role of information and communication is greatly increasing. In the event of a communication disaster, it will cause a significant impact on social infrastructure, suspension of the national critical infrastructure services, and the lives of the people. In addition, the information communication sector needs systematic management to create an information communication environment that is safe from disasters because dependence on the information communication sector has increased rapidly as the industrial structure has advanced. In this paper, we analyzed the types and risks of disasters that may occur to the information communication infrastructure that play important roles in national critical infrastructure, such as information communications, finance, health and healthcare, for systematic management. In the event of a disaster in the information communication infrastructure, it is believed that it will have a significant impact on the national critical infrastructure service suspension and people's lives.

Revisiting the Nexus of Trade Openness and Economic Growth: A Focus on the Moderating Role of Port Infrastructure

  • Lee, Jae-Ho;Pak, Myong-Sop
    • Journal of Korea Trade
    • /
    • v.26 no.2
    • /
    • pp.1-20
    • /
    • 2022
  • Purpose - Multiple stakeholders-including politicians, investors, and the wider public-have questioned the value of investing in port infrastructure improvements and the contributions they can make to economic performance. Design/methodology - This paper presents an empirical study of 56 countries with seaports from the year 2006 to 2019 to determine how the quality of port infrastructure affects its contribution in terms of trade openness and economic growth. To this end, this study applies hierarchical multiple regression analysis with panel data to empirically examine the economic impact of port infrastructure quality on the relationship between trade openness and economic growth. After the 56 selected countries were categorized as developed or developing, a multi-group panel data analysis was conducted. Findings - The results of this study show that trade openness has a significant positive effect on the national economy. The findings also indicate that, although developing countries should expect greater economic growth after investing in port infrastructure, this relationship weakens as developing countries become richer. Originality/value - The findings of this study not only elucidate the relationship between trade openness and national economic growth, but they also emphasize the importance of trade openness and port infrastructure in national economic growth, particularly among developing countries.

The Impacts of IT Infrastructure Flexibility on New Product Competitive Advantages (정보기술 기반구조의 유연성이 신제품 경쟁우위에 미치는 영향)

  • Jung, Seung-Min;Kim, Joon-S.;Im, Kun-Shin
    • Asia pacific journal of information systems
    • /
    • v.17 no.2
    • /
    • pp.1-28
    • /
    • 2007
  • The success of new product development is a key factor for getting competitive advantages. Marketing research has been investigating marketing capability, manufacturing technical capability, cross-functional integration, market knowledge competence, market orientation, and competitive environment as the key success factors of new product development. Recently, the role of IT infrastructure in enhancing new product advantage is assumed in the literature. However, the empirical studies on the role of IT infrastructure are lacking. The purpose of this study is to empirically exam the impacts of IT infrastructure on new product competitive advantage. In this study, IT infrastructure is conceptualized as the flexibility of IT infrastructure. Based on previous research, a conceptual model is established by incorporating the direct impact of IT infrastructure flexibility and its indirect impact through the key success factors on new product development. To empirically test the research model, data are surveyed from a pair of IS department and Marketing department of 92 consumer goods manufacturers. By employing PLS technique, the measurement reliability and reliability of research variables are tested and the path analysis is conducted to do the hypothesis testing. The path analysis shows that IT infrastructure flexibility has no direct effect on new product advantage, However, the indirect effect of IT infrastructure is found, which is mediated by marketing capability, manufacturing technical capability, cross-functional integration, and market orientation respectively. Hence, The flexible IT infrastructure increases cross-functional integration (H1), market orientation (H3), marketing capability (H5), and manufacturing technical capability (H6). All success factors of new product development excepts for competitive environment have a positive association with new product competitive advantages (from H10 to H14). Finally, the path from IT infrastructure flexibility to cross-functional integration, to market orientation, to market knowledge capability, and to new product advantage is found as the strongest path. These results indicate that the flexible IT infrastructure enhances information sharing with multiple departments and collaboration within a distributed innovation environment. The collaboration among departments positively affects the level of customer and competitor intelligence. The ability to obtain knowledge about customers and competitors makes firms to adapt to a changing environment quickly and to respond to customers' demands adequately. The flexible IT infrastructure also enhances the capability of organization to more rapidly respond to the changes in product design resulting in faster product development and reduced costs. In addition to, it enhances marketing capability by the two-way communications with customers and the analyses of various kinds of customer data. In brief, the finding of this study suggests that the flexible IT infrastructure allows many firms to pursue sustained new product competitive advantages. This study advances research on IT infrastructure in two important aspects. First, by Integrating marketing research and IS research, this study develops a conceptual model on the role of IT infrastructure in enhancing new product advantage. Second, it empirically finds the indirect impacts of IT infrastructure on new product advantage, which confirms the potential for the IS field to contribute to new product development research. The limitations of this study are also discussed to provide research directions for future research.